Archive for May, 2005

A Day For The Record Books…

Tuesday, May 31st, 2005

As we turn the calender over the June tomorrow, we will reflect on what has been the 3rd driest May on record. With practically no chance of additional rainfall at Nashville International today, we stand at 1.03″ of rain for the month. Here’s the official tally of the driest May in over 50 years:
http://www.srh.noaa.gov/ohx/climate/topten.htm

More significant than being that dry in what is normally the wettest month of the year on average, is that for the first time since the year 2000 we are actually now running below our normal yearly rainfall! In comparison, we are 6″ of rain behind last year at this time! That’s why our lawns are already turning crunchy…little early for that, isn’t it???

And you think we have been dry here…how about Jackson, Tennessee: .42″ of rain this month, that will be their driest May on record!

It’s almost like Mother Nature knows we are headed into a different month…with the change comes a new weather pattern for us here in Middle Tennessee. Warmer temperatures well in the 80’s will be featured beyond this Wednesday/Thursday rain chance with afternoon thunderstorms possible starting early next week. All in all, not bad for folks headed to Bonnaroo Music Festival!

There’s no scientific study on this, but I’d have to say we’ve pretty lucky so far this year with our weekend weather!

A Dry Memorial Day & Gorgeous Sunsets!

Monday, May 30th, 2005

From Dave Hincy (pronounced Hinsee)
in Donelson high above the Cumberland River overlooking the Howells’s farm in Madison at the end of Neely’s Bend.
oldglory.jpg

Memorial Day turned out dry with sunshine for most! The clouds hung out in the southern counties of Middle Tennessee.
It was one of those odd weekends when the weather just refused to cooperate with the forecast but… WOW!… was it worth it!!

We will see a good chance of rain for Wednesday. That is the first day of June so, hopefully, it won’t be as dry!
We’ve only measured a little more than an inch at the Nashville Airport this May. May is typically the wettest month of the year at a little more than 5 inches of rain.

One thing we have had the past week is beautiful sunsets

Columbia Sunset by Dianne, Jeff and Tara Henson:
ColumbiaSunset_DianneJeffTaraHenson.jpg

Lascassas Sunset by Toni Copous:
LascassasSunsetToniCopous.jpg

Cummingsville Sunset by Courtney Dishman:
CummingsvillesunsetCourtneyDishman.jpg

Fredonia Sunset by Tim Haddock:
FredoniaSunsetTim Haddock.jpg

Sunset by Terrie… Don’t Know Where??:
SunsetTerrie.jpg

Franklin County Sunset:
sunsetfranklinco.jpg

Bradyville Sunset:
sunsetbradyville.jpg

Cool Pictures

Sunday, May 29th, 2005

From a viewer e-mail:

This picture is sent in by Brenda Pullen of Lewisburg, TN. Picture was taken by my brother - in - law Philip Pullen. The Honey Bees were in the Apple Tree in his Back Yard in Cornersville, TN. The honey bee nest is about 3 1/2 to 4 feet long and reaches all around the apple tree. He used a Cannon B20 camera with a 302.8 lens.

Wow!

Another e-mail:

This was taken while we were returning from Bowling Green to our home base in Macon county on Wednesday. We were at 5500 Ft and as you can see, it was beautiful out.

Trent Dobbs
Flight Paramedic
Air-Evac 19
Lafayette, TN

Great view!

Feel free to send us your pictures!

Have a great holiday weekend!

Let’s Talk Global Warming

Friday, May 27th, 2005

Within the weather community, discussions on global warming are about as heated as it gets.

(Did I just type that?)

Let’s be honest: for 99% of us, global warming (global climate change, if you prefer) isn’t something that weighs heavily on our minds on a daily basis. If it’s happening, just turn the air conditioner up a little and all is well, right?

I’m okay with that train of thought, but if you’re one of the millions who live along the ocean (billions, perhaps?) global warming is a little more pressing of an issue.

That’s the topic of this article.

Here’s the gist of the piece:

Assuming it’s happening…one result of global warming would be increased sea levels as areas of ice melt. (If you leave a glass of ice water outside on a warm day, the water level rises once the ice cubes melt. Same idea with the Earth.)

Another result of global warming would be more water evaporated into the atmosphere. Increased moisture would translate to increased rain/snow…but curiously enough, that may actually offset the rising sea levels.

Here’s a look at everyone’s 7th favorite continent:

The map on the right shows thickening ice in shades of orange and red

The map on the right shows ice growth. All the shades of orange/red in eastern Antarctica depict thickening ice sheets, while the blue shades in western Antarctica show thinning ice.

Scientists have long hypothesized that because there’s more moisture in the atmosphere more snow will fall across parts of Antarctica…now they’ve got the measurements to help support that claim. According to the article, thickening ice sheets in eastern Antarctica are slowing the effects of rising sea levels.

Interesting how Mother Nature balances herself out, isn’t it?

Clues To Our Summer Weather?

Tuesday, May 24th, 2005

I’ll be the first to admit…the Middle Tennessee weather over the last six months has been wacky! No real snow chances, no major storm outbreaks (not complaining!) and very streaky temperatures. You would figure that would make it pretty difficult to forecast the summer months…perhaps. But since the woolly worm doesn’t help us out this time of year, and we are starting to get e-mails wondering what we think what the summer months will hold for us…I am left with the humble record book.

Flashback to 1997…El Nino in place, a cool start to the winter in December. The winter chill peaked in mid January where lows were in the single numbers. Temperatures gradually moderated from there and we saw very little snowfall (around 3″ in Nashville) that winter. It was really wet in March (9.64″ of rain) followed by a slow start to the summer warmth.

Sound familiar???

We are currently in a weak El Nino pattern. Early winter was cool; lows in mid January were in the lower teens and then readings moderated with only a tiny amount of winter snowfall. We had a very wet April (6.93″) and a very slow start to the summer warmth.

So, what was the summer of ‘97 like? Glad you asked!

May 1997: Only around 2″ of rain until the final weekend.
June 1997: Readings were cool for the first half, much warmer for the second half.
July 1997: Dry and hot. 17 straight days above 90 degrees and 99 degrees on July 27th!
August 1997: Typical temperatures but long stretches of dry weather.

This way of long range prediction has its faults, but who was the person that said, “Those who do not learn from history, are doomed to repeat it.”

Your predictions?

Columbia visit…and some quality time w/ the NWS

Saturday, May 21st, 2005

I spent most of Friday in Maury County at the Career Odyssey in Columbia. 8th graders from schools across the county had the opportunity to visit and interview folks from a variety of careers. Have you ever been interviewed by 600 8th graders? Luckily for me, it wasn’t all at the same time.

Career Odyssey in Columbia on Friday, May 20th

Career Odyssey in Columbia on Friday, May 20th

Earlier in the week…

Kevin, Davis, Brandon (our weather intern from Mississippi State) and I spent the morning talking with meteorologists from the Nashville National Weather Service. We discussed ways to improve the lines of communication between television stations and the NWS during severe weather coverage and talked about the finer points of the WSR-88D at Old Hickory Lake.

From left to right: Mark Richards (Senior Nashville NWS Forecaster), Kevin, Davis, Larry Vannozzi (Meteorologist in Charge at Nashville NWS):

That's a lot of weather geeks (myself included)

Another Busy Hurricane Season?

Tuesday, May 17th, 2005

Going to start today by following up a few things I mentioned in my entry yesterday:

The National Hurricane Center in Miami issued their hurricane outlook for the 2005 season yesterday and the news isn’t good.
http://www.cpc.ncep.noaa.gov/products/outlooks/hurricane.html

While they don’t throw out exact numbers like Colorado State hurricane forecaster Dr. Gray, what does jump out at me from this is the 70% chance of an above average season! Also on that outlook are links to several great new products that monitor the Atlantic Basin in real time!

And here’s the link to sign up for daily air quality alerts right to your e-mail:
https://enviroflash.epa.gov/airnow/subscriber/start.do
Let me know how that works for you as the season goes along.

Looks like we are going to go through the next week or so without any major cooldowns, warmups, or strong storms. The big news will be a more consistant chance of rain. The first half of May has been quite dry and there should be several chances of rain coming. One system arrives on Thursday and/or Friday and another possibly Monday or Tuesday next week. The flowers and plants will enjoy it, and we may get a pleasant weekend wedged in between!

Double Haloes Around the Sun

Monday, May 16th, 2005

I’m taking a walk with my dog Lola this afternoon, enjoying the sunshine and not waking up at 1:30 AM. On our way back from checking the mail (junk mail and a bill) I saw something pretty cool in the sky:

Two haloes seen during the early afternoon.

Similar to rainbows, haloes are faintly colored arcs that sometimes appear around the moon and the sun. They’re caused by light refracting (bending) through the ice crystals inside cirrus clouds (the high, wispy clouds outside today).

Below is the visible satellite image from 12:45 PM, which shows plenty of cirrus clouds over Middle Tennessee. At noon the Nashville International Airport reported a layer of cirrus clouds at 20,000 feet overhead.

Cirrus clouds seen on the visible satellite image from Monday afternoon.

I thought about but couldn’t recall ever seeing two haloes at the same time, so I checked one of my favorite weather books and indulged in a moment of geekiness on my day off.

What I learned:

The outer halo is called a 46 degree halo, and is rarer than the inner halo (called a 22 degree halo). Both are produced by sunlight bouncing through the inside of randomly oriented ice crystals in the upper atmosphere. Each halo is red on the inner edge and blue on the outer edge.

Here’s another picture of
the double haloes.

Enjoy the weather!

P.S.
Timothy Hollmann sent us this picture, as well
Sun ring.jpg

“Northern Lights” (Aurora Borealis) Seen This Morning In Nashville

Sunday, May 15th, 2005

aurora.jpg
This picture was taken by Larry Koehn early Sunday morning (May 15)

Can you believe this picture? Local astronomer/photogropher Larry Koehn has been sending us great pictures over the years of astronomical phenomena. This is one of the prettiest.
This is a 20 second exposure, letting more light in the camera, and making the aurora brighter.

To see more of Larry’s pictures go to:
http://www.shadowandsubstance.com/May2005auroras/May2005auroras.htm

To learn more about the solar storm that caused the aurora, go to Space Weather at:
http://www.spaceweather.com/

Davis Nolan Earns New AMS Seal, Certified Broadcast Meteorologist (CBM)

Sunday, May 15th, 2005

CBMlogo.jpg

I guess you can teach an old dog new tricks!

Recently, the American Meteorological Society started a new certification program to upgrade their broadcast seal of approval (called Certified Broadcast Meteorologist or CBM). I didn’t have to upgrade to the new seal (the old seal remains valid), but I thought that since I’m the “old man” around here, that I should. It required taking a test that had an extensive on line “study guide” to go over. The best part is that I learned some new things while studying. When you’ve been around as long as I have, you can tend to think that you know most everything. Not true. Some of the best new info concerned severe weather. I can’t wait to show my colleagues some of the new tricks that I have learned!


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